i stuck a piece of plastic in there make a lil gap bu NO NOISE hahaha

 

I had this noise fixed under warrenty.

Basically, it was a really bad. Come to find out my car was hit in the front passenger side after they peeled the car apart. Basically what happened was they reinserted the foam inside the firewall, and pulled the windshield out. Once they did that, they readhered the roof. I'm not for sure the full details, this is what the dealer told me. A ton of the noise is gone now, but there is still the occasional ticking and popping but that is due to the wreck the dealer told me nothing about. Figures.

I am happy with the repair now, but my driver window squeaks bad when I roll it down or roll it up when it goes over the seal. I'm not for sure how that happened.

You guys might want to make sure that this is not the problem. They told me the sheetmetal in the firewall was flexing and thats what caused the noise. This was what had to be done with the repair to fix the ticking and popping. It was really bad.

 

I have a fully loaded 2009 G37S 7AT sedan (purchased new) and one reason I spent so much money for the car was I wanted something that was not only powerful, luxurious, gorgeous, reliable, high-tech, and with superior handling, but QUIET. For the first several months I was very pleased with how quiet the car was (as well as my other criteria).

But then I started hearing the EXACT same noise everyone in this thread was complaining about- a sharp pop sound. From the driver's seat, it sounds like it is coming from the top of the windshield, but I could never really tell. Over the months it got worse, happening nearly every time the front of the car flexes from hitting a bump- especially if just one wheel. At times it would drive me crazy, no matter how much I tried to "tune it out"... I would see a bump ahead and cringe, knowing the pop was soon to happen.

It would happen more frequently the lower (colder) the outside temperature, but it would still happen even in the summer. Why I didn't search for this thread until now, I don't know. Thank god for this forum! The weather outside right now is really nasty, so I am not up to experimenting at the moment. But I will try some stuff and promise to post back to see how it goes. Would love to hear from others about how their "fixes" have stood up against time.

**This thread should not be limited to the "coupe" sub-forum, since it is nothing specific to the coupe.**

If I can just get this fixed, then my only remaining long-term annoyance would be the infamous 7AT "flares" in shifting: https://www.myg37.com/forums/g37-sed...hifting-6.html

 

Buy a 3 dollar can of "silicon lube" from home depot it's a yellow can. Spray it directly along the outer windshield cowl which is where the glass meets the hard black line on the outside of the car. The popping come from the windshield cowl hitting the base. It has worked for me. I tend to relube the cowl every few months or after driving in heavy rain.

 

I have a 2009 G37xS with the same issue as you. I only started hearing the problem once the weather got below freezing. I popped out all the little snap fittings under the hood and removed the covers near the firewall which left the difficult to remove lower windshield piece in place but loose along the bottom. The problem was solved. The only place the noise comes from is where the fasteners are holding things in place and allowing slipping. I put a small smear of white lithium grease around each of holes where the plastic bits mate when I resinstalled it. So far 12 months later the problem extremely rare now and even when it occurs it is very mild. I preferred this to hosing everything with a lubricant.

 

Well, as it turned out, I did need to make a 20 + 20 mile trip tonight, afterall, and I do have a can of silicone spray. Regardless of how silly it sounded, I sprayed the windshield right at the join with the cowl about 30 min before I left.

Poof- problem GONE.

 

Like I said in the past - it's the COWL.

Good to see others have success with this.

 

can someone post a picture of and highlight the area for spraying the cowl?

 

Someone already did: https://www.myg37.com/forums/attachm...90306-1718.jpg

 

I manged to get rid of the creaking sounds for good on both of my G37.

After removing the cowl, there are 2 soft seal cords on the cowl groove, where the glass fit's
Remove that cords and wash them. Also wash the grooves to remove any mud from there.

The original seal cords are like this:




Puth the seal back in place then add some D-type froam door seal on top of them.



You can buy D-type door seal froam from HomeDepot




Puth the cowl back in place then you are good to go.

 

Do you have any step by step on removing the cowl?

 

i was having this problem along with every other one listed on this board with my g37...best solution is to sell it and buy something else

 

Elco, thank you so much for sharing that information. I have been testing with the silicon spray but it has been taking a lot of time- I sprayed everywhere, then waited for it to wear off, then sprayed everywhere again to just make sure, and waited for it to wear off, and then I sprayed just the CENTER few inches, thinking it was there and just discovered it is not (which GREATLY surprised me).

Yours sounds like a more permanent solution like I am looking for. The pictures are a nice touch.

*Would you be able to describe your procedure for removing the cowl? Removing the cowl sounds a bit scary and I don't want to do the wrong thing
*Are you saying you placed the "D" foam on top of the round or above the round?
*Did you have the loud "popping" sound also? Did this fix that?

 

On the sedan i had the continuus creaking sound, especialy when it was cold outside.

On the vert, i had the loud popping sound from time to time and no creaking.

The D shape seal must be on the top of the round original seal, in direct contact with the windshield.

There are different seal types: D,E,P shape. In my opinion, the D shape should be the best. E shape should work fine too.


-You must remove the wipers arms first. (check the service manual for detailed instructions)
Be carefull to not damage the windshield wile removing the wiper arms.

-Then remove the clips that hold the battery cover and brake booster cover.
-Remove the battery cover and brake booster cover.
-Remove the clips that hold the cowl in place.
-Remove the rubber piece that connect each cowl end to the windshield finisher.
-Remove the clip that connect the windshield washer hose to the right side cowl end
-On Sedan, you can remove the rubber seal that connect the 2 cowl pieces. On the vert, is harder to remove the seal, but the cowl can be removed in 1 piece, easyer than on sedan.
-Remove the cowl very carefuly.

The windshield lower end slide into a deep groove into the cowl.
Be very carefull to not damage the winshield glass.
At the bottom of that groove you must place the D shape seal, over the original seal.
You must squeeze the seal to fit into the cowl groove.

You can remove the cowl in one piece or you can unclip it from the middle then remove it in 2 pieces. Passager side first.
Make sure that you dont damage the clip on the middle.

If you remove the cowl in 1 piece, dissengage the clip from the middle then separate the 2 cowl pieces.
Is easyer to work and easyer to puth it back in 2 pieces.


Removing the cowl is not scary or dangeuros.
The only danger is when removing the wiper arms.
After removing the bolts, you must shake the arms with force to remove them.
Make sure to not hit the windsheield with the wiper arms.

 

After detailing this weekend, I sprayed the cowl with a german made teflon dry lube, so far the noise is gone, thanks to everybody who posted here...